#! python3
"""
author: laoxu
"""


# 游戏说明
def showInstructions():
    print('''
    RPG Game
    ========
    完成游戏条件：拿到钥匙和药水到达花园并躲避怪物。
    
    命令:
      go [direction]
      get [item]
    '''
          )


# 打印当前房间和背包信息
def showCurrentRoom(room, bag):
    print('You are in the %s' % currentRoom)
    print('Inventory: ', bag)


rooms = {
    'Hall': {
        'south': 'Kitchen',
        'east': 'Dinning Room',
        'item': 'key'
    },
    'Kitchen': {
        'north': 'Hall',
        'item': 'monster'
    },
    'Dinning Room': {
        'west': 'Hall',
        'south': 'Garden',
        'item': 'potion'
    },
    'Garden': {
        'north': 'Dinning Room'
    }
}

# 初始化房间
currentRoom = 'Hall'

# 初始化物品栏
inventory = []

# 打印游戏帮助
showInstructions()

print('You are in the %s' % currentRoom)
print('Inventory: ', inventory)
print('You see a key')

while True:
    # 玩家进入厨房，游戏结束
    if 'item' in rooms[currentRoom] and 'monster' in rooms[currentRoom]['item']:
        print('你被怪物抓住了...游戏结束！')
        break
    # 玩家拿到钥匙和药水进入花园，游戏结束
    if currentRoom == 'Garden' and 'key' in inventory and 'potion' in inventory:
        print('你逃脱了房子！你赢了！')
        break

    # 接收操作步骤
    step = input()

    # 客厅->厨房
    if currentRoom == 'Hall' and step == 'go south':
        currentRoom = 'Kitchen'
        continue
    # 客厅->餐厅
    elif currentRoom == 'Hall' and step == 'go east':
        currentRoom = 'Dinning Room'
    # 厨房->客厅
    elif currentRoom == 'Kitchen' and step == 'go north':
        currentRoom = 'Hall'
    # 餐厅->客厅
    elif currentRoom == 'Dinning Room' and step == 'go west':
        currentRoom = 'Hall'
    # 餐厅->花园
    elif currentRoom == 'Dinning Room' and step == 'go south':
        currentRoom = 'Garden'
    # 花园->餐厅
    elif currentRoom == 'Garden' and step == 'go north':
        currentRoom = 'Dinning Room'
    # 拿到钥匙
    elif currentRoom == 'Hall' and 'key' not in inventory and step == 'get key':
        inventory.append('key')
        print('key got!')
    # 拿到药水
    elif currentRoom == 'Dinning Room' and 'potion' not in inventory and step == 'get potion':
        inventory.append('potion')
        print('potion got!')

    # 打印房间和物品栏
    showCurrentRoom(currentRoom, inventory)

    if currentRoom == 'Hall' and 'key' not in inventory:
        print('You see a key')
    if currentRoom == 'Dinning Room' and 'potion' not in inventory:
        print('You see a potion')

    continue
